/Engine/Plugins/Experimental/GeometryScripting/Source/GeometryScriptingCore/Public/GeometryScript/MeshModelingFunctions.h
Apply Linear Extrusion (ie extrusion in a single direction) to the triangles of TargetMesh identified by the Selection. The input Selection will still identify the same geometric elements after the Extrusion
static [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * ApplyMeshLinearExtrudeFaces ( [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * TargetMesh, [FGeometryScriptMeshLinearExtrudeOptions](API\Plugins\GeometryScriptingCore\GeometryScript\FGeometryScriptM-_6) Options, [FGeometryScriptMeshSelection](API\Plugins\GeometryScriptingCore\GeometryScript\FGeometryScriptMeshSelection) Selection, [UGeometryScriptDebug](API\Plugins\GeometryScriptingCore\GeometryScript\UGeometryScriptDebug) * Debug )